HOMER3 Antibody

Overview

HOMER3 antibody supplied as a purified reagent for WB, FACS, IHC-P in Human, Mouse samples. This product is a polyclonal (rabbit origin) antibody (host: Rabbit; isotype: Rabbit Ig) intended for research use only. The target is commonly annotated with cytoplasmic, cell junction localization context, which may inform staining patterns.

Key elements and design rationale

• Antibody identity: Polyclonal (rabbit origin); host Rabbit; isotype Rabbit Ig.
• Format and purification: format: Purified; purity: Antigen affinity purified.
• Species reactivity (reported): Human, Mouse.
• Applications (listed): WB, FACS, IHC-P.
• Immunogen / epitope context: A portion of amino acids 281-308 from the human protein was used as the immunogen for the HOMER3 antibody..
• Localization: Cytoplasmic, cell junction (annotation-level guidance; cell state and isoforms can shift patterns).

These attributes help you align the antibody with the biological question (target state, sample type, and readout) while keeping interpretation grounded in appropriate controls.

Biological background

HOMER3 is the intended antigen for this primary antibody. Reported biological context includes: HOMER3 is a member of the HOMER family of postsynaptic density scaffolding proteins that share a similar domain structure consisting of an N-terminal Enabled/vasodilator-stimulated phosphoprotein homology 1 domain which mediates protein-protein interactions, and a carboxy-terminal coiled-coil domain and two leucine zipper motifs that are involved in self-oligomerization. This protein binds numerous other proteins including group I metabotropic glutamate receptors,inositol 1,4,5-trisphosphate receptors and amyloi… Subcellular localization information (Cytoplasmic, cell junction) can be useful when interpreting IF/ICC patterns and selecting compartment-enriched lysates for WB.

Research relevance and current trends

• Post-translational modification mapping: phosphorylation-site–resolved antibodies are used to connect signaling inputs to target activation states and downstream readouts.
• Spatial and single-cell approaches: imaging-based and cytometry workflows increasingly quantify heterogeneity and relocalization rather than only bulk abundance.
• Interaction-centric biology: IP-based enrichment and proteomics are widely used to define complexes, binding partners, and context-specific interactomes.

Common research applications

• Western blot (WB): compare relative abundance/isoform patterns across conditions and sample types; band shifts may reflect processing or post-translational modification.
• FACS: commonly used to measure relative target levels or localization changes in the context of the experimental question.
• IHC-P: commonly used to measure relative target levels or localization changes in the context of the experimental question.

Across these readouts, differences in signal intensity, localization, or complex enrichment are typically interpreted alongside sample-matched controls and independent evidence to distinguish regulation from technical variation.

Notes for experimental interpretation

• Isoforms, cleavage products, or post-translational modifications can alter apparent molecular weight and subcellular distribution; interpret bands and staining patterns in the context of expected biology and sample preparation.
• Species differences and epitope conservation may affect binding; use matched positive controls and orthogonal evidence when comparing across organisms.
• Control concepts: include appropriate isotype and secondary-only controls (for imaging), and consider genetic perturbations (knockout/knockdown/overexpression) or independent antibodies targeting distinct epitopes to strengthen conclusions.

Epitope context is defined by the immunogen description; when available, align this with known domains, PTM sites, or family homology to anticipate potential cross-reactivity patterns. As a polyclonal antibody, recognition spans multiple epitopes, which can improve detection across conformations but may broaden background depending on sample context.

Customization & Add-ons: Can’t find the antibody you need—or require a custom format for your assay? We can help you source the best match or support custom antibody solutions for diverse research needs, including species and isotype selection, conjugations and labeling (e.g., HRP/AP, biotin, fluorophores), purification grade options (Protein A/G, affinity purified), formulation preferences (buffer selection, carrier-free, glycerol-free), custom concentrations and aliquoting, low-endotoxin options for cell-based work, and application-focused QC/validation support (project dependent). Click Talk to a Scientist to submit a request, email us at support@biohippo.com, or explore our Research Services for additional support—our team will follow up with feasibility details and next steps.